Hi Ralph,
>> 1. I use Frescobaldi.
>
> Wow. I missed this somehow. I can see why you use absolute values exclusively, Kieren. I'm almost exclusively transcribing and transposing fiddle tunes. I do a lot of entry from sheet music, and do a lot of proofreading, then transposing. Not terribly complicated, but valuable to me. Relative entry works much better for me than absolute entry. I can input the tune in treble clef, proofread it, and transpose to alto clef with fewer than 10 keystrokes.
Have you tried Frescobaldi and MIDI entry?
No, I'm afraid not. I never learned a keyboard instrument, and I don't think I have the time at present to add that to my list. I really do understand why absolute values would work very well with MIDI input.
All the best, and thanks for all you do to help others on this list, Kieren,
Ralph